Hi thank you. The light is stock from the fluval spec 5, I can't seem to find specs on the color temperature, but I do a lot of photography and can say it does not have any yellow or color in it. It looks like a fairly cool LED and bright as hell, although people here have said that this light is "weak." The photo I posted is also not great, but if you look at the red cherry shrimp in contrast to the plant you will see it has a fair bit of blue... The plant also has a ton of growth, and doesn't look unhealthy whatsoever, so is it good or bad?